- A
Configure the CodeBuild project to use a VPC with a NAT gateway to the internet.
Provides reliable internet access from CodeBuild.
- B
Use a custom Docker image that includes pre-installed npm packages.
Why wrong: Custom image still needs to download packages if not included.
- C
Enable local dependency caching in the buildspec file.
Why wrong: Caching helps after first download, but initial download still fails.
- D
Increase the build timeout to the maximum value.
Why wrong: Does not address network timeouts.
Question 1,532 of 1,750
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses AWS CodePipeline to deploy a Node.js application to AWS Elastic Beanstalk. The pipeline includes a build stage that runs 'npm install' and 'npm test'. The team notices that the build stage often fails due to network timeouts when downloading npm packages. Which action would MOST reliably resolve this issue?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the CodeBuild project to use a VPC with a NAT gateway to the internet.
The network timeouts occur because the CodeBuild project lacks outbound internet access to reach the npm registry. By configuring the CodeBuild project to use a VPC with a NAT gateway, you provide a stable, routable path to the internet via the NAT gateway's elastic IP, eliminating intermittent connectivity issues caused by relying on public endpoints through a non-VPC network path.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure the CodeBuild project to use a VPC with a NAT gateway to the internet.
Why this is correct
Provides reliable internet access from CodeBuild.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a custom Docker image that includes pre-installed npm packages.
Why it's wrong here
Custom image still needs to download packages if not included.
- ✗
Enable local dependency caching in the buildspec file.
Why it's wrong here
Caching helps after first download, but initial download still fails.
- ✗
Increase the build timeout to the maximum value.
Why it's wrong here
Does not address network timeouts.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume increasing timeouts or caching will fix intermittent network failures, but the real issue is a missing outbound internet path when CodeBuild is configured to run inside a VPC without a NAT gateway.
Detailed technical explanation
How to think about this question
CodeBuild runs in an AWS-managed environment that, by default, has outbound internet access via a NAT device in the CodeBuild service VPC. However, when you associate a CodeBuild project with a customer VPC (e.g., to access resources like a private npm registry or a database), the build environment loses default internet access unless you explicitly route traffic through a NAT gateway or internet gateway. The NAT gateway translates private IPs to a public IP, enabling outbound HTTPS (TCP/443) requests to the npm registry while keeping the build environment within the VPC.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
SDLC Automation — This question tests SDLC Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the CodeBuild project to use a VPC with a NAT gateway to the internet. — The network timeouts occur because the CodeBuild project lacks outbound internet access to reach the npm registry. By configuring the CodeBuild project to use a VPC with a NAT gateway, you provide a stable, routable path to the internet via the NAT gateway's elastic IP, eliminating intermittent connectivity issues caused by relying on public endpoints through a non-VPC network path.
What should I do if I get this DOP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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